1 /* 2 * PowerMac MacIO device emulation 3 * 4 * Copyright (c) 2005-2007 Fabrice Bellard 5 * Copyright (c) 2007 Jocelyn Mayer 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a copy 8 * of this software and associated documentation files (the "Software"), to deal 9 * in the Software without restriction, including without limitation the rights 10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 11 * copies of the Software, and to permit persons to whom the Software is 12 * furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included in 15 * all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 23 * THE SOFTWARE. 24 */ 25 #include "qemu/osdep.h" 26 #include "qapi/error.h" 27 #include "hw/hw.h" 28 #include "hw/ppc/mac.h" 29 #include "hw/misc/macio/cuda.h" 30 #include "hw/pci/pci.h" 31 #include "hw/ppc/mac_dbdma.h" 32 #include "hw/char/escc.h" 33 #include "hw/misc/macio/macio.h" 34 #include "hw/intc/heathrow_pic.h" 35 36 /* Note: this code is strongly inspirated from the corresponding code 37 * in PearPC */ 38 39 /* 40 * The mac-io has two interfaces to the ESCC. One is called "escc-legacy", 41 * while the other one is the normal, current ESCC interface. 42 * 43 * The magic below creates memory aliases to spawn the escc-legacy device 44 * purely by rerouting the respective registers to our escc region. This 45 * works because the only difference between the two memory regions is the 46 * register layout, not their semantics. 47 * 48 * Reference: ftp://ftp.software.ibm.com/rs6000/technology/spec/chrp/inwork/CHRP_IORef_1.0.pdf 49 */ 50 static void macio_escc_legacy_setup(MacIOState *s) 51 { 52 ESCCState *escc = ESCC(&s->escc); 53 SysBusDevice *sbd = SYS_BUS_DEVICE(escc); 54 MemoryRegion *escc_legacy = g_new(MemoryRegion, 1); 55 MemoryRegion *bar = &s->bar; 56 int i; 57 static const int maps[] = { 58 0x00, 0x00, /* Command B */ 59 0x02, 0x20, /* Command A */ 60 0x04, 0x10, /* Data B */ 61 0x06, 0x30, /* Data A */ 62 0x08, 0x40, /* Enhancement B */ 63 0x0A, 0x50, /* Enhancement A */ 64 0x80, 0x80, /* Recovery count */ 65 0x90, 0x90, /* Start A */ 66 0xa0, 0xa0, /* Start B */ 67 0xb0, 0xb0, /* Detect AB */ 68 }; 69 70 memory_region_init(escc_legacy, OBJECT(s), "escc-legacy", 256); 71 for (i = 0; i < ARRAY_SIZE(maps); i += 2) { 72 MemoryRegion *port = g_new(MemoryRegion, 1); 73 memory_region_init_alias(port, OBJECT(s), "escc-legacy-port", 74 sysbus_mmio_get_region(sbd, 0), 75 maps[i + 1], 0x2); 76 memory_region_add_subregion(escc_legacy, maps[i], port); 77 } 78 79 memory_region_add_subregion(bar, 0x12000, escc_legacy); 80 } 81 82 static void macio_bar_setup(MacIOState *s) 83 { 84 ESCCState *escc = ESCC(&s->escc); 85 SysBusDevice *sbd = SYS_BUS_DEVICE(escc); 86 MemoryRegion *bar = &s->bar; 87 88 memory_region_add_subregion(bar, 0x13000, sysbus_mmio_get_region(sbd, 0)); 89 macio_escc_legacy_setup(s); 90 } 91 92 static void macio_common_realize(PCIDevice *d, Error **errp) 93 { 94 MacIOState *s = MACIO(d); 95 SysBusDevice *sysbus_dev; 96 Error *err = NULL; 97 98 object_property_set_bool(OBJECT(&s->dbdma), true, "realized", &err); 99 if (err) { 100 error_propagate(errp, err); 101 return; 102 } 103 sysbus_dev = SYS_BUS_DEVICE(&s->dbdma); 104 memory_region_add_subregion(&s->bar, 0x08000, 105 sysbus_mmio_get_region(sysbus_dev, 0)); 106 107 qdev_prop_set_uint64(DEVICE(&s->cuda), "timebase-frequency", 108 s->frequency); 109 object_property_set_bool(OBJECT(&s->cuda), true, "realized", &err); 110 if (err) { 111 error_propagate(errp, err); 112 return; 113 } 114 sysbus_dev = SYS_BUS_DEVICE(&s->cuda); 115 memory_region_add_subregion(&s->bar, 0x16000, 116 sysbus_mmio_get_region(sysbus_dev, 0)); 117 118 qdev_prop_set_uint32(DEVICE(&s->escc), "disabled", 0); 119 qdev_prop_set_uint32(DEVICE(&s->escc), "frequency", ESCC_CLOCK); 120 qdev_prop_set_uint32(DEVICE(&s->escc), "it_shift", 4); 121 qdev_prop_set_chr(DEVICE(&s->escc), "chrA", serial_hd(0)); 122 qdev_prop_set_chr(DEVICE(&s->escc), "chrB", serial_hd(1)); 123 qdev_prop_set_uint32(DEVICE(&s->escc), "chnBtype", escc_serial); 124 qdev_prop_set_uint32(DEVICE(&s->escc), "chnAtype", escc_serial); 125 object_property_set_bool(OBJECT(&s->escc), true, "realized", &err); 126 if (err) { 127 error_propagate(errp, err); 128 return; 129 } 130 131 macio_bar_setup(s); 132 pci_register_bar(d, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->bar); 133 } 134 135 static void macio_realize_ide(MacIOState *s, MACIOIDEState *ide, 136 qemu_irq irq0, qemu_irq irq1, int dmaid, 137 Error **errp) 138 { 139 SysBusDevice *sysbus_dev; 140 141 sysbus_dev = SYS_BUS_DEVICE(ide); 142 sysbus_connect_irq(sysbus_dev, 0, irq0); 143 sysbus_connect_irq(sysbus_dev, 1, irq1); 144 qdev_prop_set_uint32(DEVICE(ide), "channel", dmaid); 145 object_property_set_link(OBJECT(ide), OBJECT(&s->dbdma), "dbdma", errp); 146 macio_ide_register_dma(ide); 147 148 object_property_set_bool(OBJECT(ide), true, "realized", errp); 149 } 150 151 static void macio_oldworld_realize(PCIDevice *d, Error **errp) 152 { 153 MacIOState *s = MACIO(d); 154 OldWorldMacIOState *os = OLDWORLD_MACIO(d); 155 DeviceState *pic_dev = DEVICE(os->pic); 156 Error *err = NULL; 157 SysBusDevice *sysbus_dev; 158 159 macio_common_realize(d, &err); 160 if (err) { 161 error_propagate(errp, err); 162 return; 163 } 164 165 sysbus_dev = SYS_BUS_DEVICE(&s->cuda); 166 sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev, 167 OLDWORLD_CUDA_IRQ)); 168 169 sysbus_dev = SYS_BUS_DEVICE(&s->escc); 170 sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev, 171 OLDWORLD_ESCCB_IRQ)); 172 sysbus_connect_irq(sysbus_dev, 1, qdev_get_gpio_in(pic_dev, 173 OLDWORLD_ESCCA_IRQ)); 174 175 object_property_set_bool(OBJECT(&os->nvram), true, "realized", &err); 176 if (err) { 177 error_propagate(errp, err); 178 return; 179 } 180 sysbus_dev = SYS_BUS_DEVICE(&os->nvram); 181 memory_region_add_subregion(&s->bar, 0x60000, 182 sysbus_mmio_get_region(sysbus_dev, 0)); 183 pmac_format_nvram_partition(&os->nvram, os->nvram.size); 184 185 /* Heathrow PIC */ 186 sysbus_dev = SYS_BUS_DEVICE(os->pic); 187 memory_region_add_subregion(&s->bar, 0x0, 188 sysbus_mmio_get_region(sysbus_dev, 0)); 189 190 /* IDE buses */ 191 macio_realize_ide(s, &os->ide[0], 192 qdev_get_gpio_in(pic_dev, OLDWORLD_IDE0_IRQ), 193 qdev_get_gpio_in(pic_dev, OLDWORLD_IDE0_DMA_IRQ), 194 0x16, &err); 195 if (err) { 196 error_propagate(errp, err); 197 return; 198 } 199 200 macio_realize_ide(s, &os->ide[1], 201 qdev_get_gpio_in(pic_dev, OLDWORLD_IDE1_IRQ), 202 qdev_get_gpio_in(pic_dev, OLDWORLD_IDE1_DMA_IRQ), 203 0x1a, &err); 204 if (err) { 205 error_propagate(errp, err); 206 return; 207 } 208 } 209 210 static void macio_init_ide(MacIOState *s, MACIOIDEState *ide, size_t ide_size, 211 int index) 212 { 213 gchar *name; 214 215 object_initialize(ide, ide_size, TYPE_MACIO_IDE); 216 qdev_set_parent_bus(DEVICE(ide), sysbus_get_default()); 217 memory_region_add_subregion(&s->bar, 0x1f000 + ((index + 1) * 0x1000), 218 &ide->mem); 219 name = g_strdup_printf("ide[%i]", index); 220 object_property_add_child(OBJECT(s), name, OBJECT(ide), NULL); 221 g_free(name); 222 } 223 224 static void macio_oldworld_init(Object *obj) 225 { 226 MacIOState *s = MACIO(obj); 227 OldWorldMacIOState *os = OLDWORLD_MACIO(obj); 228 DeviceState *dev; 229 int i; 230 231 object_property_add_link(obj, "pic", TYPE_HEATHROW, 232 (Object **) &os->pic, 233 qdev_prop_allow_set_link_before_realize, 234 0, NULL); 235 236 object_initialize(&os->nvram, sizeof(os->nvram), TYPE_MACIO_NVRAM); 237 dev = DEVICE(&os->nvram); 238 qdev_prop_set_uint32(dev, "size", 0x2000); 239 qdev_prop_set_uint32(dev, "it_shift", 4); 240 241 for (i = 0; i < 2; i++) { 242 macio_init_ide(s, &os->ide[i], sizeof(os->ide[i]), i); 243 } 244 } 245 246 static void timer_write(void *opaque, hwaddr addr, uint64_t value, 247 unsigned size) 248 { 249 } 250 251 static uint64_t timer_read(void *opaque, hwaddr addr, unsigned size) 252 { 253 uint32_t value = 0; 254 uint64_t systime = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); 255 uint64_t kltime; 256 257 kltime = muldiv64(systime, 4194300, NANOSECONDS_PER_SECOND * 4); 258 kltime = muldiv64(kltime, 18432000, 1048575); 259 260 switch (addr) { 261 case 0x38: 262 value = kltime; 263 break; 264 case 0x3c: 265 value = kltime >> 32; 266 break; 267 } 268 269 return value; 270 } 271 272 static const MemoryRegionOps timer_ops = { 273 .read = timer_read, 274 .write = timer_write, 275 .endianness = DEVICE_LITTLE_ENDIAN, 276 }; 277 278 static void macio_newworld_realize(PCIDevice *d, Error **errp) 279 { 280 MacIOState *s = MACIO(d); 281 NewWorldMacIOState *ns = NEWWORLD_MACIO(d); 282 Error *err = NULL; 283 SysBusDevice *sysbus_dev; 284 MemoryRegion *timer_memory = NULL; 285 int i; 286 int cur_irq = 0; 287 288 macio_common_realize(d, &err); 289 if (err) { 290 error_propagate(errp, err); 291 return; 292 } 293 294 sysbus_dev = SYS_BUS_DEVICE(&s->cuda); 295 sysbus_connect_irq(sysbus_dev, 0, ns->irqs[cur_irq++]); 296 297 sysbus_dev = SYS_BUS_DEVICE(&s->escc); 298 sysbus_connect_irq(sysbus_dev, 0, ns->irqs[cur_irq++]); 299 sysbus_connect_irq(sysbus_dev, 1, ns->irqs[cur_irq++]); 300 301 /* OpenPIC */ 302 sysbus_dev = SYS_BUS_DEVICE(ns->pic); 303 memory_region_add_subregion(&s->bar, 0x40000, 304 sysbus_mmio_get_region(sysbus_dev, 0)); 305 306 /* IDE buses */ 307 for (i = 0; i < ARRAY_SIZE(ns->ide); i++) { 308 qemu_irq irq0 = ns->irqs[cur_irq++]; 309 qemu_irq irq1 = ns->irqs[cur_irq++]; 310 311 macio_realize_ide(s, &ns->ide[i], irq0, irq1, 0x16 + (i * 4), &err); 312 if (err) { 313 error_propagate(errp, err); 314 return; 315 } 316 } 317 318 /* Timer */ 319 timer_memory = g_new(MemoryRegion, 1); 320 memory_region_init_io(timer_memory, OBJECT(s), &timer_ops, NULL, "timer", 321 0x1000); 322 memory_region_add_subregion(&s->bar, 0x15000, timer_memory); 323 } 324 325 static void macio_newworld_init(Object *obj) 326 { 327 MacIOState *s = MACIO(obj); 328 NewWorldMacIOState *ns = NEWWORLD_MACIO(obj); 329 int i; 330 331 qdev_init_gpio_out(DEVICE(obj), ns->irqs, ARRAY_SIZE(ns->irqs)); 332 333 object_property_add_link(obj, "pic", TYPE_OPENPIC, 334 (Object **) &ns->pic, 335 qdev_prop_allow_set_link_before_realize, 336 0, NULL); 337 338 for (i = 0; i < 2; i++) { 339 macio_init_ide(s, &ns->ide[i], sizeof(ns->ide[i]), i); 340 } 341 } 342 343 static void macio_instance_init(Object *obj) 344 { 345 MacIOState *s = MACIO(obj); 346 347 memory_region_init(&s->bar, obj, "macio", 0x80000); 348 349 object_initialize(&s->cuda, sizeof(s->cuda), TYPE_CUDA); 350 qdev_set_parent_bus(DEVICE(&s->cuda), sysbus_get_default()); 351 object_property_add_child(obj, "cuda", OBJECT(&s->cuda), NULL); 352 353 object_initialize(&s->dbdma, sizeof(s->dbdma), TYPE_MAC_DBDMA); 354 qdev_set_parent_bus(DEVICE(&s->dbdma), sysbus_get_default()); 355 object_property_add_child(obj, "dbdma", OBJECT(&s->dbdma), NULL); 356 357 object_initialize(&s->escc, sizeof(s->escc), TYPE_ESCC); 358 qdev_set_parent_bus(DEVICE(&s->escc), sysbus_get_default()); 359 object_property_add_child(obj, "escc", OBJECT(&s->escc), NULL); 360 } 361 362 static const VMStateDescription vmstate_macio_oldworld = { 363 .name = "macio-oldworld", 364 .version_id = 0, 365 .minimum_version_id = 0, 366 .fields = (VMStateField[]) { 367 VMSTATE_PCI_DEVICE(parent_obj.parent, OldWorldMacIOState), 368 VMSTATE_END_OF_LIST() 369 } 370 }; 371 372 static void macio_oldworld_class_init(ObjectClass *oc, void *data) 373 { 374 PCIDeviceClass *pdc = PCI_DEVICE_CLASS(oc); 375 DeviceClass *dc = DEVICE_CLASS(oc); 376 377 pdc->realize = macio_oldworld_realize; 378 pdc->device_id = PCI_DEVICE_ID_APPLE_343S1201; 379 dc->vmsd = &vmstate_macio_oldworld; 380 } 381 382 static const VMStateDescription vmstate_macio_newworld = { 383 .name = "macio-newworld", 384 .version_id = 0, 385 .minimum_version_id = 0, 386 .fields = (VMStateField[]) { 387 VMSTATE_PCI_DEVICE(parent_obj.parent, NewWorldMacIOState), 388 VMSTATE_END_OF_LIST() 389 } 390 }; 391 392 static void macio_newworld_class_init(ObjectClass *oc, void *data) 393 { 394 PCIDeviceClass *pdc = PCI_DEVICE_CLASS(oc); 395 DeviceClass *dc = DEVICE_CLASS(oc); 396 397 pdc->realize = macio_newworld_realize; 398 pdc->device_id = PCI_DEVICE_ID_APPLE_UNI_N_KEYL; 399 dc->vmsd = &vmstate_macio_newworld; 400 } 401 402 static Property macio_properties[] = { 403 DEFINE_PROP_UINT64("frequency", MacIOState, frequency, 0), 404 DEFINE_PROP_END_OF_LIST() 405 }; 406 407 static void macio_class_init(ObjectClass *klass, void *data) 408 { 409 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 410 DeviceClass *dc = DEVICE_CLASS(klass); 411 412 k->vendor_id = PCI_VENDOR_ID_APPLE; 413 k->class_id = PCI_CLASS_OTHERS << 8; 414 dc->props = macio_properties; 415 set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); 416 /* Reason: Uses serial_hds in macio_instance_init */ 417 dc->user_creatable = false; 418 } 419 420 static const TypeInfo macio_oldworld_type_info = { 421 .name = TYPE_OLDWORLD_MACIO, 422 .parent = TYPE_MACIO, 423 .instance_size = sizeof(OldWorldMacIOState), 424 .instance_init = macio_oldworld_init, 425 .class_init = macio_oldworld_class_init, 426 }; 427 428 static const TypeInfo macio_newworld_type_info = { 429 .name = TYPE_NEWWORLD_MACIO, 430 .parent = TYPE_MACIO, 431 .instance_size = sizeof(NewWorldMacIOState), 432 .instance_init = macio_newworld_init, 433 .class_init = macio_newworld_class_init, 434 }; 435 436 static const TypeInfo macio_type_info = { 437 .name = TYPE_MACIO, 438 .parent = TYPE_PCI_DEVICE, 439 .instance_size = sizeof(MacIOState), 440 .instance_init = macio_instance_init, 441 .abstract = true, 442 .class_init = macio_class_init, 443 .interfaces = (InterfaceInfo[]) { 444 { INTERFACE_CONVENTIONAL_PCI_DEVICE }, 445 { }, 446 }, 447 }; 448 449 static void macio_register_types(void) 450 { 451 type_register_static(&macio_type_info); 452 type_register_static(&macio_oldworld_type_info); 453 type_register_static(&macio_newworld_type_info); 454 } 455 456 type_init(macio_register_types) 457